Circular fire damper available in the largest diameters (up to 630 mm) with a fire resistance up to 120 minutes.

• Casing in galvanised steel.
• Intumescent strip.

CR2+CFTH : Circular fire damper CR2  with the unlocking mechanism CFTH. It automatically unlatches the damper blade when the temperature in the duct rises above 72ºC. due to the rise in temperature the fusible link melts. This causes an armed internal torsion spring to unwind and thereby release the damper blade into its safety position (closed). The fusible link must be replaced after functioning.

the damper can be unlocked manually to test the proper functioning of the mechanism. The damper must be reset manually.

CR2+MANO EVO : Circular fire damper CR2 with unlocking mechanism MANO EVO. It automatically unlatches the damper blade when the temperature in the duct rises above 72ºC. The fusible link must be replaced after functioning. the fusible link must be replaced after functioning. It is easy to upgradethe automatic MANO EVO mechanism into a:

• Remote controlled mechanism: The optional magnet kit V MAN EVO FDCU 24/48V enables electrical unlocking from distance. The damper must be reset manually.
• Motorised mechanism: with the kit ME MANO EVO, the damper can additionally be reset from a distance.
• By adding an end and beginning of range switch to the mechanism, the position of the blade (open or closed) can be controlled remotely.

CR2+BFL(T) : Circular fire damper CR2 with spring return actuator BFL(T). When powered, the actuator moves the damper blade into its standad-by position. When the power is interrupted, the internal armed spring brings the damper blade back into its safety position. The (included) beginning and end of range switches indicate the position of the damper blade.

Models equipped with a fusible link (T) interrupt the power supply when the temperature in the duct exceeds 72ºC.